X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=wmadec_filter.c;h=49f69b54d7601168ef195c938ae800a229f5ba19;hp=fdf3da91c44e8b7b5acd6920cbd8175c838ec30a;hb=3010ef96e10cb15d423eef8f9802fbed78744393;hpb=05527588bd503e4748d801b641a9e3a6556525ad diff --git a/wmadec_filter.c b/wmadec_filter.c index fdf3da91..49f69b54 100644 --- a/wmadec_filter.c +++ b/wmadec_filter.c @@ -25,6 +25,7 @@ #include #include #include +#include #include "para.h" #include "error.h" @@ -32,6 +33,7 @@ #include "ggo.h" #include "string.h" #include "sched.h" +#include "buffer_tree.h" #include "filter.h" #include "bitstream.h" #include "imdct.h" @@ -59,6 +61,7 @@ #define LSP_POW_BITS 7 struct private_wmadec_data { + /** Information contained in the audio file header. */ struct asf_header_info ahi; struct getbit_context gb; /** Whether to use the bit reservoir. */ @@ -75,7 +78,8 @@ struct private_wmadec_data { uint16_t exponent_bands[BLOCK_NB_SIZES][25]; /** The index of the first coef in high band. */ int high_band_start[BLOCK_NB_SIZES]; - int coefs_end[BLOCK_NB_SIZES]; ///< max number of coded coefficients + /** Maximal number of coded coefficients. */ + int coefs_end[BLOCK_NB_SIZES]; int exponent_high_sizes[BLOCK_NB_SIZES]; int exponent_high_bands[BLOCK_NB_SIZES][HIGH_BAND_MAX_SIZE]; struct vlc hgain_vlc; @@ -89,21 +93,31 @@ struct private_wmadec_data { uint16_t *run_table[2]; uint16_t *level_table[2]; const struct coef_vlc_table *coef_vlcs[2]; - /* frame info */ - int frame_len; ///< frame length in samples - int frame_len_bits; ///< frame_len = 1 << frame_len_bits + /** Frame length in samples. */ + int frame_len; + /** log2 of frame_len. */ + int frame_len_bits; /** Number of block sizes. */ int nb_block_sizes; /* block info */ int reset_block_lengths; - int block_len_bits; ///< log2 of current block length - int next_block_len_bits; ///< log2 of next block length - int prev_block_len_bits; ///< log2 of prev block length - int block_len; ///< block length in samples - int block_pos; ///< current position in frame - uint8_t ms_stereo; ///< true if mid/side stereo mode - uint8_t channel_coded[MAX_CHANNELS]; ///< true if channel is coded - int exponents_bsize[MAX_CHANNELS]; ///< log2 ratio frame/exp. length + /** log2 of current block length. */ + int block_len_bits; + /** log2 of next block length. */ + int next_block_len_bits; + /** log2 of previous block length. */ + int prev_block_len_bits; + /** Block length in samples. */ + int block_len; + /** Current position in frame. */ + int block_pos; + /** True if mid/side stereo mode. */ + uint8_t ms_stereo; + /** True if channel is coded. */ + uint8_t channel_coded[MAX_CHANNELS]; + /** log2 ratio frame/exp. length. */ + int exponents_bsize[MAX_CHANNELS]; + float exponents[MAX_CHANNELS][BLOCK_MAX_SIZE]; float max_exponent[MAX_CHANNELS]; int16_t coefs1[MAX_CHANNELS][BLOCK_MAX_SIZE]; @@ -111,9 +125,9 @@ struct private_wmadec_data { float output[BLOCK_MAX_SIZE * 2]; struct mdct_context *mdct_ctx[BLOCK_NB_SIZES]; float *windows[BLOCK_NB_SIZES]; - /* output buffer for one frame and the last for IMDCT windowing */ + /** Output buffer for one frame and the last for IMDCT windowing. */ float frame_out[MAX_CHANNELS][BLOCK_MAX_SIZE * 2]; - /* last frame info */ + /** Last frame info. */ uint8_t last_superframe[MAX_CODED_SUPERFRAME_SIZE + 4]; /* padding added */ int last_bitoffset; int last_superframe_len; @@ -136,7 +150,7 @@ struct private_wmadec_data { #define VLCBITS 9 #define VLCMAX ((22 + VLCBITS - 1) / VLCBITS) -#define SINE_WINDOW(x) float sine_ ## x[x] __aligned(16) +#define SINE_WINDOW(x) float sine_ ## x[x] __a_aligned(16) SINE_WINDOW(128); SINE_WINDOW(256); @@ -1167,9 +1181,9 @@ static int wma_decode_superframe(struct private_wmadec_data *pwd, void *data, goto fail; samples += pwd->ahi.channels * pwd->frame_len; } - PARA_DEBUG_LOG("frame_len: %d, block_len: %d, outbytes: %zd, eaten: %d\n", + PARA_DEBUG_LOG("frame_len: %d, block_len: %d, outbytes: %d, eaten: %d\n", pwd->frame_len, pwd->block_len, - (int8_t *) samples - (int8_t *) data, pwd->ahi.block_align); + (int)((int8_t *)samples - (int8_t *)data), pwd->ahi.block_align); *data_size = (int8_t *)samples - (int8_t *)data; return pwd->ahi.block_align; fail: @@ -1178,6 +1192,101 @@ fail: return ret; } +static void wmadec_close(struct filter_node *fn) +{ + struct private_wmadec_data *pwd = fn->private_data; + + if (!pwd) + return; + wmadec_cleanup(pwd); + free(fn->buf); + fn->buf = NULL; + free(fn->private_data); + fn->private_data = NULL; +} + +static int wmadec_execute(struct btr_node *btrn, const char *cmd, char **result) +{ + struct filter_node *fn = btr_context(btrn); + struct private_wmadec_data *pwd = fn->private_data; + + if (!strcmp(cmd, "samplerate")) { + if (pwd->ahi.sample_rate == 0) + return -ERRNO_TO_PARA_ERROR(ENAVAIL); + *result = make_message("%u", pwd->ahi.sample_rate); + return 1; + } + if (!strcmp(cmd, "channels")) { + if (pwd->ahi.channels == 0) + return -ERRNO_TO_PARA_ERROR(ENAVAIL); + *result = make_message("%u", pwd->ahi.channels); + return 1; + } + return -ERRNO_TO_PARA_ERROR(ENOTSUP); +} + +#define WMA_OUTPUT_BUFFER_SIZE (128 * 1024) + +static void wmadec_post_select(__a_unused struct sched *s, struct task *t) +{ + struct filter_node *fn = container_of(t, struct filter_node, task); + int ret, converted; + struct private_wmadec_data *pwd = fn->private_data; + struct btr_node *btrn = fn->btrn; + size_t len; + char *in; + +next_buffer: + converted = 0; + t->error = 0; + ret = btr_node_status(btrn, fn->min_iqs, BTR_NT_INTERNAL); + if (ret < 0) + goto err; + if (ret == 0) + return; + btr_merge(btrn, fn->min_iqs); + len = btr_next_buffer(btrn, (char **)&in); + ret = -E_WMADEC_EOF; + if (len < fn->min_iqs) + goto err; + if (!pwd) { + ret = wma_decode_init(in, len, &pwd); + if (ret < 0) + goto err; + if (ret == 0) { + fn->min_iqs += 4096; + goto next_buffer; + } + fn->min_iqs = WMA_FRAME_SKIP + pwd->ahi.block_align; + fn->private_data = pwd; + converted = pwd->ahi.header_len; + goto success; + } + for (;;) { + char *out; + int out_size = WMA_OUTPUT_BUFFER_SIZE; + if (converted + fn->min_iqs > len) + break; + out = para_malloc(WMA_OUTPUT_BUFFER_SIZE); + ret = wma_decode_superframe(pwd, out, + &out_size, (uint8_t *)in + converted + WMA_FRAME_SKIP, + len - WMA_FRAME_SKIP); + if (ret < 0) { + free(out); + goto err; + } + btr_add_output(out, out_size, btrn); + converted += ret + WMA_FRAME_SKIP; + } +success: + btr_consume(btrn, converted); + goto next_buffer; +err: + assert(ret < 0); + t->error = ret; + btr_remove_node(btrn); +} + static ssize_t wmadec_convert(char *inbuffer, size_t len, struct filter_node *fn) { @@ -1213,25 +1322,13 @@ static ssize_t wmadec_convert(char *inbuffer, size_t len, return converted; } -static void wmadec_close(struct filter_node *fn) -{ - struct private_wmadec_data *pwd = fn->private_data; - - if (!pwd) - return; - wmadec_cleanup(pwd); - free(fn->buf); - fn->buf = NULL; - free(fn->private_data); - fn->private_data = NULL; -} - static void wmadec_open(struct filter_node *fn) { fn->bufsize = 1024 * 1024; fn->buf = para_malloc(fn->bufsize); fn->private_data = NULL; fn->loaded = 0; + fn->min_iqs = 4096; } /** @@ -1244,4 +1341,7 @@ void wmadec_filter_init(struct filter *f) f->open = wmadec_open; f->close = wmadec_close; f->convert = wmadec_convert; + f->execute = wmadec_execute; + f->pre_select = generic_filter_pre_select; + f->post_select = wmadec_post_select; }